The first group of photos of the Chang'e-6 mission, the first group of photos of the moon, made many people break the defense, and this photo looks really "touching".
For example, some netizens said that "there is too much lag behind in taking pictures, it may not be a priority, and many small countries take better pictures than China", which was taken by a mobile phone for a few years, right? Have you burned your beard? Wait a minute.
Anyway, this photo is not good, what the hell is going on? Is it really that bad? Let's take a closer look.
The Chang'e-6 mission – the first set of photos of the moon is here
That's right, since the launch of Chang'e-6, the mainland has walked to the moon in 5 days and entered the orbit around the moon.
In the orbit around the Moon, one of the international payloads of the Chang'e-6 mission, the Pakistani CubeSat separated from the orbiter near the apogee in the 12-hour orbit around the Moon, and then successfully took the first image.
The Pakistan CubeSat project has achieved the stated goal of "successful separation, telemetry" and has been a complete success, which also means that the first international payload mission has begun.
And you can take a look at the photos taken this time, which does make many people dissatisfied, which is understandable.
As you can see from the photos, some "dots", the display of the surface of the moon is not clear, and there are problems such as reflection, which makes many people break the defense, and feel that the camera is really bad.
As the first time in human history to collect samples on the far side of the moon, the release of this photo is indeed a bit unwilling, so it can be a little clearer, right?
In fact, the main problem is still in the problem of the camera, and the photos taken are nothing more than the problem of the camera, so everyone is arguing, and it is completely normal to break the defense.
Is this cube really that bad? Convergence of technologies
In fact, how about taking photos, this does not explain how the CubeSat is, and in reality, this satellite can be regarded as a fusion of multiple technologies, and its tasks are also very many.
Of course, Pakistan's CubeSat is only one of the international missions, and the four international missions mainly include:
- The French radon gas detector carried out in-situ detection of radon isotopes on the surface of the moon.
- ESA's Lunar Surface Negative Ion Analyzer detects negative ions on the lunar surface and studies the interaction mechanism between plasma and the lunar surface.
- Pakistan CubeSat, carrying out in-orbit imaging missions.
- The Italian laser corner reflector, as an absolute control point for positioning on the far side of the moon, can carry out joint ranging and positioning research with other lunar exploration missions.
Therefore, the follow-up international projects will bring different results to everyone, and for this satellite, photos are only part of it.
According to public information, although everyone has been saying that it is Pakistan's CubeSat, in fact, this satellite is not completed by Pakistan independently, its Chinese name is "Siyuan II", and the team of teachers and students from the School of Aeronautics and Astronautics of Shanghai Jiao Tong University participated, so it is a satellite jointly researched by China and Pakistan.
The satellite is not very large, its whole satellite weight is only 6.5 kg, the total weight of the vehicle is 9 kg, it has a design life of 3 months, has a complex communication, attitude control and power management subsystem, uses X-band communication for data transmission, and uses reaction wheels for three-axis control.
However, with so many configurations, it seems a bit difficult to carry a super good camera, and there are also weight restrictions and other issues.
Therefore, when disclosing the satellite, in fact, everyone should think that this camera may not be very strong, it is equipped with two optical cameras, so speaking of which, many people have also seen it - it is an optical camera.
On the photos of the moon released by the mainland, there are indeed a lot of reflections, in fact, this is a normal phenomenon, but under the influence of strong light, the photos are not so clear. If it's a backlight, it might be slightly better if the camera comes with a restoration.
So how big is this camera in pixels? As I told you before, I saw that the cameras in the periphery belonged to 2 1 280 × 720 pixel cameras, which didn't seem to be much of a problem, so now everyone understands, right?
Originally, the configuration is like this, but its task is not to take photos as the main thing, it also needs to carry out intelligent processing of image data in orbit, stainless magnesium alloy electric control box shell space test, nanosatellite-level deep space moon-to-ground communication and other new technology verification, fully explore the low-cost deep space exploration mode based on micro-nano satellites.
Therefore, the camera is almost almost, as long as other technologies are done, and the continent will definitely release photos of the moon later, and there must be other cameras on the probe, so everyone will wait and see, just take a look at this first.
Chang'e-6 still has 7 steps to go
That's right, after Chang'e-6 entered the orbit around the moon, there are still 7 of the 11 steps left.
The 11 stages are composed of 11 flight stages, including the launch into orbit section, the Earth-Moon transfer stage, the near-moon braking stage, the circumlunar flight stage, the landing descent stage, the lunar surface working section, the lunar surface ascent stage, the rendezvous and docking and sample transfer section, the circumlunar waiting stage, the moon-to-ground transfer stage and the re-entry and recovery stage.
After entering the orbit around the moon, it will not quickly enter the landing and descent stage, because in the circumlunar stage, the entire mission will be carried out for about 20 days, and in this process, there will be many orbit changes, and then separation and other problems.
Therefore, the last 7 steps will not be so fast, and if everything is judged according to the speculative nodes of important missions, these missions will probably not be carried out until the beginning of June, so for about 20 days, it will always change in orbit around the moon.
In fact, this is not surprising, after all, it is a mission on the far side of the moon, in addition to the international load mission, it is also necessary to analyze the landing area on the far side of the moon, etc., so that the next mission can be better executed. Therefore, it will not be so fast, and it is normal, and the entire Chang'e-6 mission on the mainland will be carried out in about 53 days.
Everyone will wait until late June, when we see the Chang'e-6 sample returning to the ground, and at that time, a sample of the far side of the moon that is unique to the world will appear in China, and of course, the lunar sample of Chang'e-6 may also be shared in the future.
But under normal circumstances, the four participating countries may be the first to get it, and the United States must not come, in the Chang'e-5 application, it is already an eye-opener, if the Chang'e-6 also comes to the lunar sample application, then this thick-skinned to a certain level.
Moreover, when the mainland carried out the Chang'e-6 mission, the director of NASA said that he did not know what China was doing on the far side of the moon, and the far side of the moon would always be dark (wrong statement), and the United States did not plan to go.
Therefore, this is nothing more than an indication that China agreed to use the Queqiao before, and they don't need it, so the samples in the back shouldn't be needed, right? So, don't come.